P0602 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


OBD-II Trouble Shooting Got a code reader? Find out what your GM car's Check Engine light is trying to tell you (and then turn Check Engine light off).

 
 
 
 
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Old 09-27-2009, 03:32 PM   #1
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Default P0602

P0602

Description
PCM NOT PROGRAMMED


PCM uses an Electrically Erasable Programmable Read Only
Memory (EEPROM). EEPROM contains program information and calibrations
required for engine, transaxle, and powertrain diagnostics operation.

Symptoms
You likely won't notice any drivability problems.

Causes
  • PCM does not contain correct program(*) required to operate
    vehicle.
Solutions
  • program PCM with correct software.
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obd2, obdii, p0602, p602

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